Question

Q1. The number of electrons in the outer most shell of alkali metals is ____
1
2
3
7
Q2. Alkaline earth metals have valency 2 . This means that their position in the modern periodic table is in _____
Group 2
Group 16
Period 2
d-block
Q3. In which block of the modern periodic table are the nonmetals found?
s-block
p-block
d-block
f-block
Q4. Which of the following triads does not follow Dobereiner's law of triads _____
Li, Na, K
Ca, Sr, Ba
Be, Mg, Ca
Cu, Ag, Au
Q5. During Newlands time ____elements were known.
56
65
63
36
Q6. The law of octaves was given by ____.
Dobereiner
Newlands
Mendeleev
Moseley
Q7. Eka-boron was subsequently named as ______
Gallium
Germanium
Scandium
Molybdenum
Q8. Halogens belong to group ______in the modern periodic table.
15
16
17
18
Q9. Noble gases belong to group ____in the modern periodic table.
15
16
17
18
Q10. The Halogen which is liquid at room temperature is _____
Fluorine
Astetine
Bromine
Iodine
Submit​

Answer 1

Answer:

hey this much?

Explanation:

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Answer 2

Answer:

ans1) 1 electron present in the outermost shell

ans 2) in Group 2

ans3) in p block

4) Ca , Sr, Ba

5) 63 elements

6) Sc. Newland

7) Scandium is known as Eka Boron

8) Halogens are in Group 17

9) Noble gases are in Group 18

10) Bromine